Design of a slow frequency hopped radio modem

TitleDesign of a slow frequency hopped radio modem
Publication TypeConference Paper
Year of Publication1993
AuthorsZhao, H., Q. Wang, and V. K. Bhargava
Conference NameTENCon '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Pagination113 -116 vol.3
Date Publishedoct.
KeywordsDSP chips, fading, frequency agility, frequency hopped system, hopped frequency synchronization, interference, ISM band, licence-free frequency band, mobile modem, mobile radio systems, modems, multi-access systems, multipath fading, multiple access system, radiofrequency interference, slow frequency hopped radio modem, software package, spread spectrum communication, telecommunication channels, telecommunications computing, testing

In this paper a slow frequency hopped radio modem is designed for use in a licence-free frequency band (known as the ISM band). The design emphasis is on the hopped frequency synchronization. To evaluate the performance, a frequency hopped system is set up using the software package SPW allowing the consideration of various forms of interference. Implementation using DSP chips is also conducted. Testing has shown that this modem is very practical for commercial use and can be used as mobile modem in a multiple access system with the existence of multipath fading and other interference


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